SEPTEMBER. 
195 
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proportion of from one-sixth to one-half of all that remains in our murky 
atmosphere.. Tropical plants are thrust into these architectural dungeons, 
and a produce is demanded equalling or exceeding that returned under 
tropical skies. To the honour of cultivators he it recorded, that these 
demands have often been met. There are cultural as well as musical 
Paganinis, who can almost do impossibilities, with only one string, but such 
men are not numerous, and in common fairness we ask for the free use 
and control of all the five. One would suppose that where the expense is 
incurred of covering a given surface with glass, the best soil would be 
freely placed at our disposal; but this is often not the case. The improve¬ 
ments in garden architecture have placed more of the other four elements 
of success within our reach ; and without any wish to disparage any other 
modern methods, I believe Mr. Beard’s Patent Metallic Glass Houses are 
nearly perfect for cultural purposes. They collect, and may readily be 
made to store and heat their own water. They absorb and store up nearly 
every ray of solar heat, while their closeness husbands it up for future use, 
as well as conserves to the utmost the artificial supply. The supply and 
temperature of the air is also under the most facile management, and the 
easiest possible control. The entire house is flooded with light, the illumi¬ 
nating power of clear glass being scarcely at all affected by the thin T-shaped 
iron bars that receive the glass and form the framework of the roof. In 
one word, these houses, of which two examples are given above, bring 
within the reach of the cultivator his chief desideratum—a tropical climate 
to bear upon tropical produce. 
Harduicke House. D. T. Fish. 
